A devotional manual of scripture, psalms, prayer, art, and ritual for Diabolists and Theistic Satanists. While this book was created initially for use by a small, private coven of practitioners (Brethren of the Morningstar), it is hoped that fellow travelers on the crooked path will find it useful and inspiring. Our aim was to create a prayer book that showed Diabolism to be more than an edgy aesthetic, but a rich spiritual path.